The ZAN Headgear Neoprene Half Face Mask features full coverage of the nose, chin, and cheeks with stretchy, warm and water resistant 2mm thick neoprene. Like most ZAN Headgear face masks it has a stretch nylon trim for added durability and clean finish. A hook and loop closure allows for adjustability and ensures great fit, and can even be lengthened with our Neoprene Extension Piece (sold separately). Provides coverage of the ears, nose and cheeks from the elements. Can be used with or without a helmet. One size fits most. Material: 70% Neoprene, 30% Polyester. U.S. Patented design.. Material: 70% Neoprene, 30% Polyester. U.S. Patented design.